mm/page_owner.c: modify the type of argument "order" in some functions

The type of "order" in struct page_owner is unsigned short.
However, it is unsigned int in the following 3 functions:

  __reset_page_owner
  __set_page_owner_handle
  __set_page_owner_handle

The type of "order" in argument list is unsigned int, which is
inconsistent.

[akpm@linux-foundation.org: update include/linux/page_owner.h]

Link: https://lkml.kernel.org/r/20211020125945.47792-1-caoyixuan2019@email.szu.edu.cn
Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Author: Cao-Wuhui

include/linux/page_owner.h

@@ -8,24 +8,24 @@
 extern struct static_key_false page_owner_inited;
 extern struct page_ext_operations page_owner_ops;
 
-extern void __reset_page_owner(struct page *page, unsigned int order);
+extern void __reset_page_owner(struct page *page, unsigned short order);
 extern void __set_page_owner(struct page *page,
-			unsigned int order, gfp_t gfp_mask);
+			unsigned short order, gfp_t gfp_mask);
 extern void __split_page_owner(struct page *page, unsigned int nr);
 extern void __folio_copy_owner(struct folio *newfolio, struct folio *old);
 extern void __set_page_owner_migrate_reason(struct page *page, int reason);
 extern void __dump_page_owner(const struct page *page);
 extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
 					pg_data_t *pgdat, struct zone *zone);
 
-static inline void reset_page_owner(struct page *page, unsigned int order)
+static inline void reset_page_owner(struct page *page, unsigned short order)
 {
 	if (static_branch_unlikely(&page_owner_inited))
 		__reset_page_owner(page, order);
 }
 
 static inline void set_page_owner(struct page *page,
-			unsigned int order, gfp_t gfp_mask)
+			unsigned short order, gfp_t gfp_mask)
 {
 	if (static_branch_unlikely(&page_owner_inited))
 		__set_page_owner(page, order, gfp_mask);
@@ -52,15 +52,15 @@ static inline void dump_page_owner(const struct page *page)
 		__dump_page_owner(page);
 }
 #else
-static inline void reset_page_owner(struct page *page, unsigned int order)
+static inline void reset_page_owner(struct page *page, unsigned short order)
 {
 }
 static inline void set_page_owner(struct page *page,
 			unsigned int order, gfp_t gfp_mask)
 {
 }
 static inline void split_page_owner(struct page *page,
-			unsigned int order)
+			unsigned short order)
 {
 }
 static inline void folio_copy_owner(struct folio *newfolio, struct folio *folio)

mm/page_owner.c

@@ -125,7 +125,7 @@ static noinline depot_stack_handle_t save_stack(gfp_t flags)
 	return handle;
 }
 
-void __reset_page_owner(struct page *page, unsigned int order)
+void __reset_page_owner(struct page *page, unsigned short order)
 {
 	int i;
 	struct page_ext *page_ext;
@@ -149,7 +149,7 @@ void __reset_page_owner(struct page *page, unsigned int order)
 
 static inline void __set_page_owner_handle(struct page_ext *page_ext,
 					depot_stack_handle_t handle,
-					unsigned int order, gfp_t gfp_mask)
+					unsigned short order, gfp_t gfp_mask)
 {
 	struct page_owner *page_owner;
 	int i;
@@ -169,7 +169,7 @@ static inline void __set_page_owner_handle(struct page_ext *page_ext,
 	}
 }
 
-noinline void __set_page_owner(struct page *page, unsigned int order,
+noinline void __set_page_owner(struct page *page, unsigned short order,
 					gfp_t gfp_mask)
 {
 	struct page_ext *page_ext = lookup_page_ext(page);